Linear Carboxyl PEGs from JenKem Technology are amine reactive PEGs. They are reactve towards the amine groups of lysine(s) or N-terminal amines at reaction pH 7-8. Methoxy Carboxyl PEGs are more stable than M-PEG-SCM. Methoxy Hexanoic Acid PEGs are more stable than M-PEG-SHA.
Carboxyl PEGylation products with molecular weights, branching, and functional groups not listed in our online catalog may be available by custom synthesis. Please inquire at email@example.com about pricing and availability of custom PEGylation products. Bulk PEGs and GMP PEGs are also available upon request. Please contact us for special bulk pricing.